BIGELOW: EXPLORATIONS IN THE GULF OF MAINE. 



69 



32.4 on the surface. North of Cape Ann there was a band of compar- 

 atively fresh water, of 32.2 to 32.3, washing the coast along the 

 twenty-five fathom curve, extending northeastward as far as Monhegan 

 Island, some ten miles broad, /. c, roughly corresponding to the fresh 

 coast water noted on the surface in this same region. But it didnot 

 pass around Cape Ann into Massachusetts Bay. The band of water 

 with salinities between 32.4 and 32. G, which was from thirty to 'fifty 



¥ 



5 

 10 

 15 

 20 

 25 

 30 

 55 



Fig. 27. — .Saliaity sections in IMassachasetts Bay, Stations 1, o, 6. 



5 



10 



15 



20 



25 



30 



55 



40 



45 



Fig. 28. — Salinity sections in MassacliiLsetts Bay, Stations 44, 45,' 46. 



miles broad abreast of Massachusetts Bay, became very narrow north 

 of Cape Ann, the two curves lying close together as far as Monhegan. 

 Beyond this point, i. e., in the mouth of Penobscot Bay, we have no 

 data on the coast water from depths as great as twenty-five fathoms, 

 or until Petit Manan is reached. But at Station 33 the twenty-five 

 fathom salinity was 32.68, and judging from temperature and tidal 

 currents, it is probable that the curve of 32.6 followed the twenty-five 



